Key shank blank



FIG. 1 is a perspective view of a key shank blank according to the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an end view thereof; and,

FIG. 7 is an opposite end view thereof. 

The ornamental design for a key shank blank, as shown and described. 